Why are English days named what they are?

Charlotte Guest
Charlotte Guest
Two friends stood over a book in a library reading it and smiling
Reading time: 4 minutes

Ever wondered why Monday is called Monday or how Wednesday got its name? The names of the days of the week in English have fascinating origins, rooted in ancient history and steeped in mythology. Understanding these origins not only enriches our language ability but also provides intriguing insights into cultural heritage.

Origins of the days of the weeks names
Play
Privacy and cookies

By watching, you agree Pearson can share your viewership data for marketing and analytics for one year, revocable by deleting your cookies.

Origins of the seven-day week

The concept of a seven-day week has ancient origins, tracing back to the Babylonians around 1500 BCE. The Babylonians, keen astronomers, divided their lunar cycle into four weeks of seven days each, aligning with the phases of the moon. This practice was later adopted by the ancient Greeks and Romans, who found the seven-day cycle practical and meaningful.

The ancient Hebrews' influence also played a crucial role in establishing the seven-day week. According to the biblical account of creation, God created the world in six days and rested on the seventh, establishing a divine precedent for a seven-day cycle. This tradition was deeply ingrained in Hebrew culture and religious practices.

By the 1st century CE, the Romans had formalized the seven-day week, integrating it into their calendar system. This structure, combining astronomical observations and religious traditions, eventually spread throughout the Roman Empire and beyond, becoming the foundation of the modern seven-day week we use today.

In the Arabic and Hebrew calendars, the day begins at sunset, which contrasts with the Swahili concept of the day starting at sunrise and the Western world, where the day starts at midnight. This highlights the cultural influences on how days are numbered and identified within these different calendrical systems.

Origins of days of the week

How did Monday get its name? Meaning of Monday

Monday is named after the Moon. The Old English word for Monday was Monandæg, which translates to "Moon's day". This naming convention is quite common across various languages; for instance, in Latin, it's dies Lunae, also meaning "day of the Moon".  

Tuesday name origin

Tuesday is named after the Norse god Tiw (also known as Tyr), a god of war and sky. The Old English term Tiwesdæg directly reflects this association. The connection to Mars, the Roman god of war, can also be seen in other languages, such as French (mardi).

Why is Wednesday called Wednesday?

Wednesday is named after Odin (or Woden), the chief god in Norse mythology. The Old English Wodnesdæg translates to "Woden's day". This day is associated with Mercury in Roman mythology, which is why it's called miércoles in Spanish and mercredi in French.

Thursday name meaning

Thursday is named in honor of Thor, the Norse god of thunder. The term 'Thor's day' serves as the etymological basis for Thursday. In Old English, it was Þūnresdæg (Thunor’s day). The link to Jupiter, the Roman king of gods and god of thunder, explains the name jeudi in French and jueves in Spanish.

Friday history and meaning

Friday is named after Frigg (also known as Frigga or Freya), the Norse goddess associated with love and beauty. The Old English term Frigedæg means "Frigg's day". In Roman mythology, this day is linked to Venus, the goddess of love, which is reflected in names like viernes in Spanish and vendredi in French.

Saturday name origin

Saturday is unique among the English day names as it retains its Roman origin, specifically named after the Roman god Saturn, the Roman god of wealth and time. The Old English Sæternesdæg directly references this deity. Interestingly, in other Germanic languages, the name often refers to the Sabbath, such as Samstag in German.

Sunday - The sun's day

Sunday is named after the Sun. Icelandic uniquely retains 'only the Sun' as the name for Sunday, rejecting names derived from pagan gods. The Old English Sunnandæg translates to “Sun’s day”, reflecting its importance and reverence in various cultures. This name is consistent across many languages, highlighting the widespread significance of the Sun.

The importance of understanding day names etymology

Understanding the etymology of day names helps language learners grasp the historical context and deepens their appreciation of English. These names are more than just labels for days; they are windows into ancient beliefs, cultures and linguistic evolution. The influence of Greek and Latin names on the naming of the days of the week during the Greco-Roman tradition is particularly notable, as the classical planets from Hellenistic astrology played a significant role in this process.

Exploring the origins of the day names in English reveals a blend of mythology, history and language evolution. From the Moon to Norse gods to Roman deities, each name tells a story of cultural significance.

More blogs from Pearson

  • A team of professionals talking together with a laptop
    Is adding a new English test complicated for admissions teams?
    By Alice Bazzi
    Reading time: 2 minutes

    For admissions teams, introducing a new English language test can feel like a significant operational challenge. Questions typically arise around integration, staff training, evaluation criteria and ongoing administration. 

    But the reality is: modern English tests like PTE Express are designed to fit into existing workflows, not disrupt them. 

    PTE Express has been built with institutional usability at its core. It aligns to globally recognized frameworks such as the Global Scale of English (GSE), allowing institutions to set clear, consistent score requirements that map easily to existing proficiency benchmarks. 

    From an operational perspective, implementation is straightforward. Admissions teams receive digital score reports through secure platforms to help eliminate manual handling and streamline verification processes. This reduces administrative burden while improving efficiency.

  • A woman and child sitting meditating
    Mindfulness activities for kids to reduce stress
    By Amy Malloy
    Reading time: 4 minutes

    How can we help children (and ourselves) deal with turbulent situations?

    As humans, we are programmed to position ourselves according to the constants around us: people, structures and boundaries. When those constants shift, it can be unsettling for adults and children. Sometimes we find ourselves in unprecedented situations, and we each have our own approach to managing things. If you feel confused and without direction because of a turbulent situation, please know that is okay.

    We’ll look today at why that is, to help us understand ourselves a little more and why these simple mindfulness activities can help us navigate it.

    What causes social stress?

    There may be many reasons for feeling stressed in life, but during turbulent times in society, it is often due to not feeling safe. Something in our environment is alerting our survival instinct. This makes our brains produce stress hormones, which get us ready to fight the threat, run from it or freeze until it’s gone away. The threat might be to our physical or even social survival – and the two are linked. Things can feel even scarier when we also feel isolated from our social group, which keeps us protected from that threat.

    Human beings are social by nature. We live and work in communities, we connect through love and empathy and we protect each other. There’s truth to the saying “there’s safety in numbers”. But it’s not just about safety. We also define ourselves by comparing ourselves to others and working out what we are not.

    Research has found that we identify deeply with our role in society and the "pack" to which we belong. This holds deep ties with our sense of safety, contentment and self-esteem. If the boundaries by which we define and position ourselves have shifted or continue to shift, we will feel unsafe, threatened and therefore stressed.

    Are children affected by social stress in the same way?

    If we then apply this to children, the constants to whom they look for security are the adults in their life. If the adults are behaving differently, the children will feel a shift and feel unsafe and stressed too. If they don’t have their friends alongside them for social positioning, this too can lead to them feeling confused and uncertain. 

    Here are some key ways we can help:

    Communicating and listening

    Children may often lack the language to express what they are feeling, or even to recognize it themselves. Therefore, we must offer ways to help them make sense of the world around them,to help them feel safe, and to help express their concerns. Communication provides the necessary social interaction and models for them on how to handle the new situation. It firms up their boundaries and provides a safe space where they feel listened to and acknowledged, and this, in turn, helps diffuse their stress. The activity below is a lovely way to invite children to express any worry they might be feeling, mindfully and with support – and give them something to do with their feelings. It also helps them breathe fully and slowly, which can calm their nervous system.

    Breath activity: Worry bubbles

    1. Sit together and invite your child to put their palms together.
    2. Invite them to take a big breath in. As they breathe in, they can draw their palms further and further apart, spreading their fingers as they imagine blowing up a big bubble between their hands.
    3. Invite them to whisper a worry into the bubble.
    4. Invite them to blow the breath out nice and slowly. As they breathe out, they can imagine blowing the bubble (and the worry) away with a big sigh.
    5. Twinkle the fingers back down to the lap, and start again, either with the same worry or a new one

    Helping them find a safety anchor inside themselves

    By helping children focus on breathing, we can teach them that even if things feel wobbly around them, their breath is always there. The act of focusing on the breath also helps settle the fight-or-flight branch of their nervous system into a calmer, more balanced state.

    Breath Activity: Counting breaths

    1. Invite your child to sit with you.
    2. Invite them to place their hands on their tummy and breathe in slowly so they push into their hands, counting slowly up to four.
    3. As they breathe out, invite them to count up to six, as they slowly empty their belly and their hands lower back down.
    4. Continue until they feel calmer. You can do this every morning or evening to help sustain balance. With younger children, they might like a teddy on their tummy to push up and down.

    These two activities can be lovely daily practices to try and provide some safety and structure to your child or students’ mental health right now. They are also enjoyable activities to try for yourself – you may like to increase the in and out count of the breath a little bit for an adult breath.

  • Student and teachers sat outside on grass talking
    Fun assessment ideas for summer language classes
    By Charlotte Guest
    Reading time: 4 minutes

    Summer language classes can have a different feel from regular classes. Students may be taking a short course, preparing for a new school year or learning English as part of a summer program. Classes may also have changing attendance, different levels of ability or a more relaxed atmosphere.

    This makes summer a good time to try assessment activities that are active, creative and enjoyable. Assessment does not always have to mean a test or a worksheet. Simple classroom activities can help you check what students know, see where they need more support and give them opportunities to use their language skills in meaningful ways.

    Here are some assessment techniques to try in your summer language classes.

    1. Hold a language auction

    Turn grammar and vocabulary practice into a fun competition with a language auction.

    Prepare a list of sentences using language students have studied. Some sentences should be correct and others should contain mistakes.

    For example:

    • “She has lived here for three years.”
    • “I have went to the cinema yesterday.”
    • “They are going to visit their grandparents.”
    • “He don’t like playing football.”

    Put students into small teams and give each team the same number of imaginary points or a set amount of play money. Read out one sentence at a time. Teams decide how confident they are that the sentence is correct and choose how much they want to “bid”. The team that makes the highest bid wins the sentence, but they only keep their points if they are right. After each round, reveal the answer and ask students to explain why the sentence is correct or incorrect.

    This gives you a quick way to check understanding while encouraging students to think carefully about language. It can also reveal areas that need more practice. You can make the activity easier or harder depending on the level of your class. For beginners, focus on simple vocabulary or basic sentence structures. For more advanced learners, use more subtle grammar errors or ask teams to correct the sentences they think are wrong.